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California tt gional Water Quality Contro-eBoard - <br /> Central Valley Region <br /> Katherine}cart,Chair <br /> Linda S.Adams 11020 Sun Center Drive ti200,Rancho Cordova,California 95670-6114 Arnold <br /> Secretary for Phone(916)464-3291 •FAX(916)464-4645 Schwarzenegger <br /> Environmental hitp://www.waterboards.ca.gov/centralvalley Governor <br /> Protection <br /> 16 July 2010 <br /> Mr. John MacLeod <br /> Chevron Environmental Management Company <br /> 6001 Bollinger Canyon Road, Room K2276 <br /> San Ramon, CA 94583 <br /> REQUEST FOR WELL ABANDONMENT, CHEVRON CORRAL HOLLOW AND GRANT <br /> LINE ROADS, TRACY, SAN JOAQUIN COUNTY <br /> California Regional Water Quality Control Board, Central Valley Region (Central Valley Water <br /> Board) staff reviewed the 8 July 2010 Request for Well Abandonment(Letter) submitted by <br /> Chevron Environmental Management Company (Chevron) for the site-at Corral Hollow and <br /> Grant Line Roads in Tracy (Site). <br /> The Letter requests concurrence to properly destroy six monitoring and extraction wells at the <br /> Site. The City of Tracy is widening Grant Line Road as part of traffic mitigation for a new "box <br /> store." Following completion of the road widening project, monitoring wells MW-5, MW-6, <br /> MW-7, MW-8, and MW-12 and extraction well EX-6 would be located in Grant Line Road and <br /> would no longer be accessible. <br /> Central Valley Water Board staff concurs with the destruction of all six wells. By <br /> 30 August 2010, Chevron needs to properly abandon the wells and submit a well <br /> abandonment report. As stated in the letter, Chevron is aware that it may need to install <br /> replacement monitoring wells. Central Valley Water Board staff will evaluate the need for <br /> replacement wells and inform Chevron of the results of the evaluation. <br /> If you have any questions regarding this letter,'you may contact me at (916) 464-4819 or <br /> ksheltonC@waterboards.ca.gov. <br /> ,�i&- zW6L— <br /> KRISTI SHELTON, P.E. <br /> Water Resources Control Engineer <br /> Aboveground Tanks Cleanup Unit <br /> cc: San Joaquin County Environmental Health Department, Stockton <br /> Mr. Allen Just, ARCADIS, Irvine <br /> California Environmental Protection Agency <br /> Co Recycled Paper <br />